Results 11 to 20 of about 117,798 (282)

Pseudo-Weak-R0 Algebras [PDF]

open access: yesThe Scientific World Journal, 2014
A positive answer to the open problem of Iorgulescu on extending weak-R0 algebras and R0-algebras to the noncommutative forms is given. We show that pseudo-weak-R0 algebras are categorically isomorphic to pseudo-IMTL algebras and that pseudo-R0 algebras ...
Yong Lin Liu, Xiaobo Cai
doaj   +2 more sources

Complexity of the Basic Reproduction Number (R0)

open access: yesEmerging Infectious Diseases, 2019
The basic reproduction number (R0), also called the basic reproduction ratio or rate or the basic reproductive rate, is an epidemiologic metric used to describe the contagiousness or transmissibility of infectious agents.
Paul L. Delamater   +4 more
doaj   +2 more sources

Filters of R0-algebras [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2006
The notion of fated filters in R0-algebras is introduced. Characterizations of (fated) filters are given. A filter generated by a set is established. By introducing the notion of finite ⊙-property, we show that if F is a nonempty subset of an R0-algebra ...
Young Bae Jun, Liu Lianzhen
doaj   +2 more sources

The Axioms Independence of Pseudo-Weak-R0 Algebras and Filters

open access: yesThe Scientific World Journal, 2014
The most simplified axiom systems of pseudo-weak-R0 algebras and pseudo-R0 algebras are obtained, and the mutually independence of axioms is proved. We introduce the notions of filters and normal filters in pseudo-weak-R0 algebras.
Yong Lin Liu
doaj   +2 more sources

COVID-19 R0: Magic number or conundrum?

open access: yesInfectious Disease Reports, 2020
There is an increasing concern about COVID-19 worldwide. This is a new emerging infectious disease caused by a novel coronavirus (SARS-CoV-2), which recently broke out from the Chinese city of Wuhan and has quickly spread in China, with sporadic cases in
Giulio Viceconte, Nicola Petrosillo
doaj   +5 more sources

Demystifying R naught: Understanding what does it hide?

open access: yesIndian Journal of Community Medicine, 2021
Since the onset of the pandemic in Wuhan city, China, forecasting and projections of the pandemic are the areas of interest for the investigators, and the basic reproduction rate R0 always stayed the favorite tool.
Arun Kumar Yadav   +3 more
doaj   +1 more source

Intraoperative Positive Pancreatic Parenchymal Resection Margin: Is It a True Indication of Completion Total Pancreatectomy after Partial Pancreatectomy for Pancreatic Ductal Adenocarcinoma?

open access: yesCurrent Oncology, 2022
Background: Total pancreatectomy (TP) can be performed in cases with positive resection margin after partial pancreatectomy for pancreatic cancer. However, despite complete removal of the residual pancreatic parenchyme, it is questionable whether an ...
Ji-Hye Jung   +5 more
doaj   +1 more source

Basic Reproduction Number of the 2019 Novel Coronavirus Disease in the Major Endemic Areas of China: A Latent Profile Analysis

open access: yesFrontiers in Public Health, 2021
Objective: The aim of this study is to analyze the latent class of basic reproduction number (R0) trends of the 2019 novel coronavirus disease (COVID-19) in the major endemic areas of China.Methods: The provinces that reported more than 500 cases of ...
Honglv Xu   +15 more
doaj   +1 more source

Estimates of the basic reproduction number for rubella using seroprevalence data and indicator-based approaches.

open access: yesPLoS Computational Biology, 2022
The basic reproduction number (R0) of an infection determines the impact of its control. For many endemic infections, R0 is often estimated from appropriate country-specific seroprevalence data.
Timos Papadopoulos, Emilia Vynnycky
doaj   +3 more sources

Impact of R0 resection for synchronous peritoneal metastasis from colorectal cancer: A propensity score‐matched analysis of a multi‐institutional database

open access: yesAnnals of Gastroenterological Surgery, 2021
Aim To investigate the usefulness of resection for synchronous peritoneal metastasis from colorectal cancer. Methods The patients who underwent surgery for stage IV colorectal cancer at 16 hospitals between 1991 and 2007 were enrolled in this study.
Hirotoshi Kobayashi   +2 more
doaj   +1 more source

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